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(CNN)The European football body, UEFA, is the latest entity dragged into the now infamous Panama Papers scandal.

Swiss police raided European soccer's governing body's headquarters in Nyon, as the seemingly worldwide investigation continues. UEFA's former general secretary, Gianni Infantino -- who is now FIFA's new boss -- said Wednesday he welcomed any investigation, having earlier denied any wrongdoing.

In a statement, UEFA says police wanted to look at a now controversial television rights contract that has emerged from the data leak.

"UEFA can confirm that today we received a visit from the office of the Swiss Federal Police acting under a warrant and requesting sight of the contracts between UEFA and Teleamazonas," a UEFA spokesman told CNN.

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"Naturally, UEFA is providing the federal police with all relevant documents in our possession and will co-operate fully."

The Teleamazonas contract was related to the sale of television rights in South America to broadcast Champions League games -- Europe's top competition.

The files published by the International Consortium of Investigative Journalists (ICIJ) allegedly show a television rights contract with Infantino's signature on it.

Argentine company, Cross Trading, initially bought the rights from UEFA before selling them on to broadcaster Teleamazonas, a subsidary of a company called Full Play, which is owned by Hugo Jinkis.

Both Hugo and Mariano Jinkis, a father and son who ran a sports marketing business in Argentina, are facing extradition to the U.S. after being indicted on corruption charges by the Department of Justice in the massive worldwide case against current and former FIFA officials.

UEFA had previously denied doing business with any of the 14 people or companies named by the U.S. Department of Justice, in the U.S. criminal case.

"It's correct that UEFA was asked some time ago whether it had any commercial dealings with certain companies and/or individuals named in the U.S .indictment," said UEFA in a statement.

"At the time of our initial response we had not had the opportunity to check each and every one of our (thousands) of commercial contracts and so the answer given was initially incomplete.

"That's the reason why Gianni Infantino initially thought, based on the information provided by UEFA, that there had been no previous UEFA contracts with any companies and/or individuals named in the indictment.

"That is also why FIFA gave this information to the media."

The alleged ties were drawn from more than 11 million documents leaked from Mossack Fonseca, a Panama law firm that allegedly helped set up secret shell companies and offshore accounts.